Answer:
37
Step-by-step explanation:
I believe there is a 1/20 chance that Mrs. Galvan will pick a black pin. Since there are 20 pens, each pen has an equal chance of getting picked. For example, you have 2 pens and one of them is blue. The chance of me getting the blue pen is 1/2 or a 50% chance. So your answer will be 1/20 chance.
Layla is creating a polygon with 4 equal sides in a circle.
This will be a regular polygon with 4 equal sides and 4 equal angles,
Layla is creating a square inside a circle.
8/10 because equal fractions have to be multiplied by 2
70-30=40
40 divided by 8 = 5
x ≤ 5
she can buy at the most 5 T-shirts.